Fire-arch structure



c. L DAVIDSON FIRE ARCH STRUCTURE Dec. 16,1924. 1,519,364

Fil ed Oct. 24, 1921 I INVENTOR a Citizen 4 section of a portion of strap for the fire brick,-

' dependently,

Patented ea. l, 192%.

OHLES 3L. DAVIDSQN, GE NEW IO, N.

FIRE-ARCH STRUCTURE.

Application filed-October 24, 1921. Serial No. 509,783.

To all whom it may concern Be it known that 1, CHARLES L. DAVIDSON, of the United States, residing in the city of New York, countyof New York, and State of New York, have made a certain new and useful invention in Fire-Arch Structures, of which the following. is a specification. p

This invention relates to fire arch structures. L

The object of the invention is to provide a-fire arch structure in which the fire bricks composing the arch are supported for individual removal,'separately and 1n- I for repair orreplacement, without disturbing the, other bricks in the structure. Y

A further object of the invention is to provide a fire arch structurein which are employed fire bricks of-standard commercial shapes, and support them in the structure se arately and independently for individua removal or replacement.

Other objects-of the invention will appear more fully hereinafter.

The invention consists substantially in combination, location and the construction, relative arrangement of parts all as willbe more fully hereinafter set forth as shown in the accompanying drawing and finally pointed out in the appended claims. In theaccompanymg drawing,

.Fig. 1' is a view in vertical lon 'tudinal fire arch structure emying the principles of my inventibn as apphed to one type of furnace; f p q p p Fig. 2 is a view in perspective, parts broken ofi and in-seetion, showing a structure of suspension of fire bricks in' an arch structure, in accordance with the principles of my invention;

Fig. 3 is a-broken detail view illustrating the manner of suspendin tion;

Fig. 4 is a view in-section on the line 4-4, Fig. 3, looking in the rows;- Fig. 5 is a detail view in perspective, show ng the fire brick of' standard commercial-shape formed to receive an individual PP g l a cordance with m i vention;',-

Fig. 6 is an edgex-view a'iu'rnace s owing a the fire brick, in. accordance withthe principles of my inven-' direction of the ar- I, -imposition, and in carrying out my invenoi-a suspending f capable o emplo The same part is designated by the same reference numeral, wherever it occurs throughout the several views.

In the'construction of fire archesfor fur- 6Q naces, it is the customary practice to employ a lining of tiles orfirebricks in order to protect the metal framework from the efiects of the heat generated in the furnace.

.Experience has shown that in the construction of fire arches, specially shaped tiles or fire bricks are'frequently required to be of large size, and they are expensive as compared with ordinary standard commercial shapes of tiles or structure of arches. Again it often happens that many difierent sha es of tiles or fire bricks are required for t 1e installation of a single furnace. Experience has demonstrated that the large size of bricks frequently spall oii due to rapid and unequal heating effects thereon, and when thisf'takes place, the iron work of'the setting becomes exposed to the intense heat ing and of the furnace, thereby causing'wa burning frequently to. the pomt o putting the entire structure out of service. -Whpn a brick or tile becomes spalled 01f or Injured by burning or otherwise, and it be comes necessary to replace it, encountered in efiecting such replacement. In many types of commercial arches it is necessary to cool down the entire furnace, then remove all of the tiles 6r bricks carried on one support until the particular one to be removed isreached, and then, after plac: ing in position the new tile or brick, the ot ers previously removed are replaced in position. In accomplishing this it frequently happens that on account of the burning of a5 the tiles or bricks, on

the exposed surfaces,

the particular row the respective sides of being worked on, are to beremoved and replaced.

It has heretofore been endeavored to avoid 100. the objections above pointed out, and. others, by providing independently supported tiles or fire bricks whereby individual bricks may be removed without disturbing the others. It is among present invention to provide separately and independently sup 0 Y may be individually removed an 7 re'pla' =1 tion I pro ose toprovide ,such a structure fire bricks for, use in the tiles or fire 75 dificulty is p 5 damaged, and have I the special purposes of 'my structure in which the bncksor t1lesare and lie

the standard com? tangular shape but of suitable shape to con-' mercial sizes and shapes of tiles and bricks. To this end I ropose to employ a thin hoop iron support or each brick, the thin hoop iron supportsbeing suitably fabricated to engage the brick to besupported or suspended thereby, and also to be received upon a suitable support, and I arrange the support, in one form of embodiment ofmy invention, in the form of a rod or pipe which in turn is separated in short lengths capable of being easily removed to permit the individual bricks 0r tiles to be removed and replaced;

In the accompanying drawing I have shown a simple arrangement of suspended tiles or fire bricks for arches embodying my invention, wherein reference numeral 10 designates the fire brick or tiles to. be individually supported. These are of standard commercial size and shape readily obtainable in the open market. Where curved surfaces of fire arch are to be provided, the bricks or tiles 11.may not be of rec form to the curvature of the surface of thearch, but tiles or bricks'for the curved portion of the wall or arch are nevertheless of commercial size and shape, andas in the 1 tile.

case of the tiles 1-0, are not required tobe specially constructed.

Each tile or brick is formed 'near one or both ends thereof with a depression or seat 12 (see Figs. 3 and 5). These depressions may either be pressed in when the bricks are molded,'or they may bed'rilled or otherwise formed therein as desired at the time of constructing and erecting the arch, or when a replacement is to be made. Each brick is suspended or supported by a thin strip of-metal indicated at. 13, which.

maybe stamped out of sheet metal, with a hole or' opening 14 through the upper end thereof, and with the boss or lug 15 pressed out of the same at the This In receive other end thereof. or projection 15 is adapted to be in the depression 12 of the brick or In addition to forming a. seat to receive the boss or projection on the suspendlng strip 13, the seat or de ression 12 in the tile, said seat when mol ed in the tile may also serve to receive a trade name or other designating or distinguishingmark. It is also obvious that the depression or seat may be, formed in any desired shape so long as it affords a seat torcceive the boss or pro ection on the suspending metal strip.

e sus ending straps 13 fora row or series of brie s or t1les are strung upolr a su porting rod 16 which, if'desired, may e In the'formo a trons of comparative y short length. The plpe sections 16 are suspended in any suit' ab e or convenient manner from the setting or framework'to permit the ready detaching member,

pi e constructed in secrangement ,is. shown clips or plates 17 are employed for the ends of the supporting pipe sections 16,v these clips or means of Its 18 between the flan cs 19 of angle bars which are supported rom thc girders 20 of the framewor By removing the cli s 17 the supporting rods 16 oriany desire section thereof may be withdrawn, thereby permitting any individual brick in the arch to be removed by driving the same upwardly or downwardly without disturbing any of the other bricks or tiles in the same row therewith or the same row. v

In this manner the bricks are suspended separately and independently, pable of being ind1vidually removed for repair or replacement without shutting down the furnace and without disturbance of other bricks of the arch.

Av structure embodyin 1m suspended separately 8.1K? independently re- -movable bricks or tiles may be applied to the side walls as well as tothe fire arch of furnaces, and in other'situations where separate and independent individual removal of the tiles or bricks is desired.

From the foregoing description-it will be seen that I prov de an exceedingly simple,

Eiates being detachably held by on opposite sides of wherein suspending but are cainvention of tiles or bricks asmay be readily and easily procured in .the open market, as well as other parts of the supportingor sus ension devices and in the structure that I have shown and described as one practical enibodiment of my invention it will be seen that several tiles or bricks and easily' detached, removed or replaced separately and individually without disturbance of others in the same or in adjacent tiers or rows.

Havin now set forth the objects and nature 9 my invention and a construction 'embodymg the principles thereof, what I claim as new and useful and of my own invention and desire to Patent is 1. In a fire arch structure, the combination with a supporting member, and carrier members arranged in sections, each section being deta'chably connected to said supportof thin metal strips strung upon said carrier member sections, and each having a laterally extending boss or projection, and fiIfQbI'lCkS or tiles' each having a depression or seat formed therein to. detachably receive a projection or boss on one of said metal strips. 2. In a fire arch structure,- the combina tion with a supporting beam, supporting chps detachably connected tosaid bea an a supporting member arran in ortlength sections, each section ing detachmay be readily tier or row,

secure by Letters 3. In a fire arch structure employing fire bricks or tiles of standard commercial sizes and shapes, each having a seat or depression formed therein, the combination with thin metal strips, each having a laterally extending boss or rojection adapted to be removably receive in a seat or depression in a brick or tile, each strip also having a perforation therethrough, in combination with a supporting member extending1 through the perforations in saidstrips, an means to detachably support said supporting member.

4. In a fire arch structure employing fire bricks or tiles-of standard commercial sizes and shapes, each having a seat or depression formed therein, the combination with thin metal strips each havin a laterally extending boss or rojection a apted to be removably receive in a seat or depresion in a brick or tile, each strip also having a perforation-therethrough, in combination with a supporting member extending through the perforations in said strips, said supporting member arranged in short-length sections, and means to independently and detachably support each section of said supporting member.

5. In a fire arch structure employing fire bricks or tiles of standard commercial sizes and shapes, each having a seat or depression formed therein, the combination with thin metal strips, each having1 a laterally extendin boss or projection a apted to be removab y received in a seat or depreion in a brick or tile, in combination with a pipe from which said strips are suspended, suspending clips for said pipe, and means to detachably support said suspending clips,

-6. In a fire arch structure employing fire bricks or tiles of standard commercial sizes,

and shapes, each having a seat or depression formed therein, the combination wlth thin metal strips, each having a laterally extending boss or projection adapted to be removably received in a seat or depression in a brick or tile, in combination with a pipe from which said strips are sus ended, sald pipe being arranged in indepen ent sections, and means to support each section for independent removal.

7. In a fire arch structure employing fire bricks or tiles of standard commercial sizes and shapes, each having a seat or depression formed therein,'the combination with thin metal strips, each having a laterally extending boss or projection adapted to be removably received in a seat or depression in a brick or tile, in combination with a, pipe from which said strips are sus ended, said pipe being arranged in indepen ent sections, suspending clips for each pipe section, and means to removably support the suspending clips of each pipe section.

In testimon whereof I have hereunto set my hand on t is 14th day of October A. D. 1921.

CHARLES L. nAvmsoN. 

